"Now let's look at the second case. In fact, your judgment already went wrong with this one. Do you think the same person committed the first and second cases?"
Batman thought for a moment and said, "According to that theory, there are indeed some problems. If he could use anesthetic when killing Lawrence, then he could have used anesthetic when killing Hock as well. But judging from the ligature marks on Hock's body, he was conscious when he was tied to the chair. He could even struggle."
"What do you think that indicates?"
Batman began pacing around the room as well. He said, "According to the coroner's autopsy report, the anesthetic in Lawrence's body was first inhaled through his mouth and nose, then injected into him. Therefore, the killer's method of subduing Lawrence may have been to enter his bedroom, cover his mouth and nose with a towel soaked in anesthetic, give him another injection, then drag him onto the floor and drive long nails through his body..."
As he described it, the scene in the room began changing constantly. Richie's corpse vanished from the floor, the walls and floor changed color, and a bed descended from midair. Lawrence lay beneath the covers, clearly asleep, when a shadow approached his bedside and pressed a towel soaked in anesthetic over his mouth and nose.
After that, he dragged the unconscious Lawrence off the bed, injected him with anesthetic, then took out long nails and hammered them through his body, arranging him in a cruciform pose with his head facing the window.
"The process of subduing Hock should have been simpler. The killer entered his study, strangled him unconscious from behind, and tied him to a chair."
At that point, Batman paused. Schiller continued, "I think you should have noticed it already.